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Motherboard - Coggle Diagram
Motherboard
Main Memory
RAM
Random-access-memory. Stores the files that are currently being used by the computer - RAM is super fast and is volatile meaning once the computer shuts down all the data in the RAM is lost. It can read and write, Normal sizes are 8GB and 16GB.
ROM
Read-only-memory. It is Non-Volatile meaning when the computer is powered off all the data currently stored in the ROM is kept. ROM can only read and cannot write.
Hard drive
The harddrive is the component which stores all of your digital content. e.g documents and pictures - it can also store your Operating System - A Hard drive is slower than a SSD
Virtual Hard drive
A virtual hard drive emulates an actual hard drive, this means that the virtual hard drive can store things than a HDD would store. Most commonly used in Virtual Machines
Cache
Cache is a small amount of memory which is a part of the CPU. It is used to temporarily hold instructions and data the CPU is likely to refuse.
CPU
Control Unit
The control unit in the CPU directs the operations of the processor. It tells the computers memory, arithmetic and logic unit and input and output devices how to respond to the instructions that have been sent to the processor.
Arithmetic Logic Unit
Used to perform Arithmetic and Logic operations. Most of the operations of a CPU are performed by one or more ALUs, which load data from input registers.
Cache
Cache is a small amount of memory which is a part of the CPU. It is used to temporarily hold instructions and data the CPU is likely to refuse.
Registers
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MAR
Memory Address Register. Either stores the memory address from which data will be fetched to the CPU, or the address to which data will be sent and stored. So the MAR holds the memory location to the data that needs to be accessed.
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